3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function shell_exec(string $text): void { echo $text; } `hello, world\n`;
Output for 7.0.0
Fatal error: Cannot redeclare shell_exec() in /in/CkTeh on line 5
Process exited with code 255.
Output for 5.3.20 - 5.6.16
Parse error: syntax error, unexpected ':', expecting '{' in /in/CkTeh on line 3
Process exited with code 255.